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    • 5. 发明授权
    • Vibrator, vibratory gyroscope, and vibrator adjusting method
    • 振动器,振动陀螺仪和振动器调节方法
    • US06346765B1
    • 2002-02-12
    • US09420350
    • 1999-10-19
    • Takayuki KikuchiShosaku GoujiYukihisa OsugiTakao Soma
    • Takayuki KikuchiShosaku GoujiYukihisa OsugiTakao Soma
    • H01L4108
    • G01C19/5607
    • A vibrator of a vibratory gyroscope comprises a main arm having a base part and at least one bending-vibration piece extending from the base part in a direction crossing the longitudinal direction of the base part and a fixing part for fixing one end of the base part, and the base part and the bending-vibration piece are formed so as to extend substantially in a specified plane. Preferably, at the opposite side to one end of the base part, a projection projecting from the bending-vibration piece is provided, or at least a pair of resonant arms resonating with vibration of the base part, said pair of resonant arms projecting from the fixing part are provided. Thanks to this, it has been possible to detect a turning angular rate in a sufficiently high accuracy without providing a projection which has a certain weight and extends from the vibrator toward the axis of turning even in case of arranging the vibrator so that the vibration arm of the vibrator extends perpendicularly to the axis of turning.
    • 振动陀螺仪的振动器包括主臂,其具有基部和至少一个弯曲振动片,所述至少一个弯曲振动片从与基部的纵向方向交叉的方向上的基部延伸,以及用于固定基部的一端的固定部 并且基部和弯曲振动片形成为基本上在特定平面内延伸。 优选地,在与基部的一端相反的一侧,设置从弯曲振动片突出的突起,或者至少一对谐振臂与基部的振动共振,所述一对共振臂从 提供固定部分。 由此,即使在设置振动器的情况下,也可以以足够高的精度检测转动角速度,而不设置具有一定重量的突起,并且从振动器朝向转动轴线延伸,使得振动臂 的振动器垂直于转动轴线延伸。
    • 6. 发明授权
    • Vibrators, vibratory gyroscopes, devices for measuring a linear acceleration and a method of measuring a turning angular rate
    • 振动器,振动陀螺仪,用于测量线性加速度的装置和测量转动角速度的方法
    • US06227048B1
    • 2001-05-08
    • US09181554
    • 1998-10-29
    • Takayuki KikuchiShosaku GoujiYukihisa OsugiTakao Soma
    • Takayuki KikuchiShosaku GoujiYukihisa OsugiTakao Soma
    • G01P904
    • G01C19/5642G01C19/5607
    • A vibratory gyroscope for detecting a turning angular rate in a turning system is provided. The gyroscope comprises a vibrator, an exciting means for exciting driving vibration in the vibrator, and a detecting means for detecting vibration induced in the vibrator. The vibrator comprises a plurality of vibration systems 1A, 1B, 2A and 2B, which are formed within a specified plane intersecting the turning axis Z. Vibration systems comprises first vibration systems 1A and 1B whose vibrations include radial vibration components, in which the center of gravity of first vibration system vibrates in a radial direction in the specified plane with respect to the center of gravity GO of the vibrator. The vibration systems also comprises second vibration systems 2A and 2B whose vibrations include circumferential vibration components, in which the center of gravity of vibration of the second vibration system vibrates in the specified plane along a circle with the center of gravity GO as its center.
    • 提供一种用于检测转动系统中的转动角速度的振动陀螺仪。 陀螺仪包括振动器,用于激励振动器中的驱动振动的激励装置,以及用于检测在振动器中感应的振动的检测装置。 振动器包括多个振动系统1A,1B,2A和2B,它们形成在与转动轴线Z相交的特定平面内。振动系统包括振动包括径向振动分量的第一振动系统1A和1B,其中, 第一振动系统的重力相对于振动器的重心GO在指定平面内沿径向方向振动。 振动系统还包括其振动包括圆周振动分量的第二振动系统2A和2B,其中第二振动系统的振动的重心沿着以重心GO为中心的圆的特定平面振动。